Box 1: folder 7, Source Material Relating to Richard A. Tewkesbury’s trips to the Darien in 1939 and 1940. Contains Tewkesbury’s unpublished writings which consist of his day by day notes of his trek through the Darien from July 6 to August 15,...

Box 1: folder 10, Source Material Relating to Richard A. Tewkesbury’s trips to the Darien in 1939 and 1940. Contains excerpts from various periodicals and publications highlighting Tewkesbury and his expeditions.